I am in zone 5b and yes I do acclimate them as I always have, a couple of hours a day for a few days, then a 4-6 hours for a week or so, and then all day (bringing them in at night) for a week or so then all the time unless the temp drops below 40 degree F.
I water every other day unless there is rain in the forecast. Typically early morning or late evening.
I am not fertilizing this year, my garden beds are new, I layered straw, compost, leaves, manure and soil in new raised beds 10-12in deep. All done over the winter. I also added blood meal for the nitrogen source.